HBO does Prison Break as well ( I think ? ) . That is the best drama series along with 24 and ALIAS
Nope, Prison Break is Fox, so is 24 and Alias was produced by ABC, (like Lost). They're all Network shows, hence violence but no swearing.
HBO did, amongst others: Sex in the City, Six Feet Under, The Sopranos, Real Time with Bill Maher (easily the best chat show ever), Rome [with the BBC], Curb Your Enthusiasm, The Wire, and Deadwood.
Prison Break is comedy value though, the only prison in the world where a child molester can talk about raping his cellmates, but nobody can actually use language worse than 'bite me', because it's on network TV.